Fly Fishing Insider Podcast
Swinging flies with a trout spey rod is about efficiency, not distance. A cast quartering downstream, a swing to straight below, then one or two steps keeps the fly in the strike zone far more of the day than false casting and stripping with a single-hand rod.
Kevin Sloan owns Skwala, a technical fly fishing apparel and wader company in southwest Montana, after guiding and more than twenty years developing technical outdoor apparel at other brands.
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What rod and line setup works for trout spey?
A three-rod trout spey kit covers most water: a two-weight with a Scandi-style line for small soft hackles, a three-weight with a standard trout spey line, and a four-weight with a short compact head heavy enough to throw sizable streamers. Sink tips scale with the rod - the four-weight sometimes carries a twelve-and-a-half-foot full sinking T8 tip for deep winter buckets. The long-head classic spey lines that suit big steelhead rods do not really have a place in trout spey.
What water holds trout when you are swinging flies?
Water choice follows the season, not preference. In early April in southwest Montana with river temperatures still under forty degrees, the productive water is slow-walking-speed current three to five feet deep - about waist deep. When the Mother's Day caddis hatch arrives, those same fish push up into the fast shallow riffles where the caddis are emerging, and the swing has to follow them there.
How does the step-and-swing method work?
Step and swing suits a long run - a hundred yards is good, and some runs of two or three hundred yards take two hours to fish properly. Cast quartering downstream, let the fly swing all the way around to straight below you, then take a step or two down and repeat the same cast with the same amount of line out. Because the line length stays constant, a three-foot step moves the fly exactly three feet farther down the run, which is what fans the water evenly. In cold water where trout will not move far, one step between casts is enough; clear water and aggressive fish allow two.
Should you move the fly on the swing?
Trout often prefer a moved fly, which is where they differ from steelhead - steelhead want it slow and smooth. Bouncing the rod tip through the swing, stripping, or adding small twitches all trigger fish, and the right analogy is playing with a cat and a piece of string: twitch it, stop it, pause it. On one fall afternoon, alternating a smooth swing with a bounced swing cast for cast produced fourteen or fifteen fish, and roughly eleven of those came on the moved fly.
What flies do you need for trout spey?
One fly does most of the work. Roughly eighty percent of a year of trout spey fishing went on a single pattern - a thin mint in black, olive and brown, tied spey style on a tube so hooks can be swapped, at about a size four or six equivalent. The two-stage tie gives it the pulsing flutter of an intruder rather than a stagnant profile. A second olive-and-black version with rubber legs and classic soft hackles during a hatch round out the box, and double fly rigs are almost never used.
Do you need long casts to fish a spey rod?
Distance is the biggest misconception about spey fishing. Most trout spey casts are no longer than what a single-hand rod would reach; the gain is that you are not stripping in or false casting between presentations, which keeps the fly in the strike zone something like thirty-five to fifty percent more of the day. Fish also sit far closer than people assume - on one famous British Columbia steelhead river the rule of thumb is that if you are wading past calf deep you are already too deep, because the fish slide up the inside bank into twenty inches of water.
How should you wash a pair of breathable waders?
Breathable waders are the most demanding piece of technical apparel most anglers own, because they are fully submerged rather than just shedding rain, and dirt and body oils ruin their breathability. Wash them every ten days of use, inside out, on a delicate cycle in a front-loading machine only - a top-loader's center agitator will wreck them, so hand wash in a tub instead. Use a technical wash rather than heavy liquid detergent, never fabric softener, which clogs the pores of the face fabric, and hang dry rather than risking a hot dryer releasing seam tape. Then retreat the outside with a DWR spray and let it set for a day.
Why do waders feel damp inside when there is no visible leak?
Damp legs with no obvious hole usually mean one of two things. The first is a cluster of pinholes too small to find without pressure testing - thorns and wild rose leave ten or more micro-punctures on a shin and it reads as death by a thousand cuts. The second, and more common, is that the face fabric is dirty or has wetted out because the DWR has worn off; a wet face fabric stops the membrane breathing, so what you feel inside is your own perspiration with nowhere to go.
Key takeaways
- Carry a two-weight for soft hackles, a three-weight for general swinging, and a four-weight with a short head for streamers.
- In water under forty degrees, look for slow-walking-speed current three to five feet deep.
- Cast the same length of line every time so each step moves the fly exactly that far down the run.
- Alternate a smooth swing with a bounced or stripped one until the fish show a preference.
- Wash breathable waders inside out every ten days of use in a front-loading machine, never a top-loader, and retreat with DWR.
- Send tears longer than an inch back to the manufacturer; carry repair tape or UV cure patch adhesive for field fixes, and never use acetone or homemade silicone mixes, which can delaminate the fabric and dissolve seam tape glue.
